1 /*
2  *  Driver for the Conexant CX23885 PCIe bridge
3  *
4  *  Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *
15  *  GNU General Public License for more details.
16  */
17 
18 #include <linux/pci.h>
19 #include <linux/i2c.h>
20 #include <linux/kdev_t.h>
21 #include <linux/slab.h>
22 
23 #include <media/v4l2-device.h>
24 #include <media/v4l2-fh.h>
25 #include <media/v4l2-ctrls.h>
26 #include <media/tuner.h>
27 #include <media/tveeprom.h>
28 #include <media/videobuf2-dma-sg.h>
29 #include <media/videobuf2-dvb.h>
30 #include <media/rc-core.h>
31 
32 #include "cx23885-reg.h"
33 #include "media/drv-intf/cx2341x.h"
34 
35 #include <linux/mutex.h>
36 
37 #define CX23885_VERSION "0.0.4"
38 
39 #define UNSET (-1U)
40 
41 #define CX23885_MAXBOARDS 8
42 
43 /* Max number of inputs by card */
44 #define MAX_CX23885_INPUT 8
45 #define INPUT(nr) (&cx23885_boards[dev->board].input[nr])
46 
47 #define BUFFER_TIMEOUT     (HZ)  /* 0.5 seconds */
48 
49 #define CX23885_BOARD_NOAUTO               UNSET
50 #define CX23885_BOARD_UNKNOWN                  0
51 #define CX23885_BOARD_HAUPPAUGE_HVR1800lp      1
52 #define CX23885_BOARD_HAUPPAUGE_HVR1800        2
53 #define CX23885_BOARD_HAUPPAUGE_HVR1250        3
54 #define CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP   4
55 #define CX23885_BOARD_HAUPPAUGE_HVR1500Q       5
56 #define CX23885_BOARD_HAUPPAUGE_HVR1500        6
57 #define CX23885_BOARD_HAUPPAUGE_HVR1200        7
58 #define CX23885_BOARD_HAUPPAUGE_HVR1700        8
59 #define CX23885_BOARD_HAUPPAUGE_HVR1400        9
60 #define CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP 10
61 #define CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP 11
62 #define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H 12
63 #define CX23885_BOARD_COMPRO_VIDEOMATE_E650F   13
64 #define CX23885_BOARD_TBS_6920                 14
65 #define CX23885_BOARD_TEVII_S470               15
66 #define CX23885_BOARD_DVBWORLD_2005            16
67 #define CX23885_BOARD_NETUP_DUAL_DVBS2_CI      17
68 #define CX23885_BOARD_HAUPPAUGE_HVR1270        18
69 #define CX23885_BOARD_HAUPPAUGE_HVR1275        19
70 #define CX23885_BOARD_HAUPPAUGE_HVR1255        20
71 #define CX23885_BOARD_HAUPPAUGE_HVR1210        21
72 #define CX23885_BOARD_MYGICA_X8506             22
73 #define CX23885_BOARD_MAGICPRO_PROHDTVE2       23
74 #define CX23885_BOARD_HAUPPAUGE_HVR1850        24
75 #define CX23885_BOARD_COMPRO_VIDEOMATE_E800    25
76 #define CX23885_BOARD_HAUPPAUGE_HVR1290        26
77 #define CX23885_BOARD_MYGICA_X8558PRO          27
78 #define CX23885_BOARD_LEADTEK_WINFAST_PXTV1200 28
79 #define CX23885_BOARD_GOTVIEW_X5_3D_HYBRID     29
80 #define CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF 30
81 #define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000 31
82 #define CX23885_BOARD_MPX885                   32
83 #define CX23885_BOARD_MYGICA_X8507             33
84 #define CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL 34
85 #define CX23885_BOARD_TEVII_S471               35
86 #define CX23885_BOARD_HAUPPAUGE_HVR1255_22111  36
87 #define CX23885_BOARD_PROF_8000                37
88 #define CX23885_BOARD_HAUPPAUGE_HVR4400        38
89 #define CX23885_BOARD_AVERMEDIA_HC81R          39
90 #define CX23885_BOARD_TBS_6981                 40
91 #define CX23885_BOARD_TBS_6980                 41
92 #define CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200 42
93 #define CX23885_BOARD_HAUPPAUGE_IMPACTVCBE     43
94 #define CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP2 44
95 #define CX23885_BOARD_DVBSKY_T9580             45
96 #define CX23885_BOARD_DVBSKY_T980C             46
97 #define CX23885_BOARD_DVBSKY_S950C             47
98 #define CX23885_BOARD_TT_CT2_4500_CI           48
99 #define CX23885_BOARD_DVBSKY_S950              49
100 #define CX23885_BOARD_DVBSKY_S952              50
101 #define CX23885_BOARD_DVBSKY_T982              51
102 #define CX23885_BOARD_HAUPPAUGE_HVR5525        52
103 #define CX23885_BOARD_HAUPPAUGE_STARBURST      53
104 #define CX23885_BOARD_VIEWCAST_260E            54
105 #define CX23885_BOARD_VIEWCAST_460E            55
106 
107 #define GPIO_0 0x00000001
108 #define GPIO_1 0x00000002
109 #define GPIO_2 0x00000004
110 #define GPIO_3 0x00000008
111 #define GPIO_4 0x00000010
112 #define GPIO_5 0x00000020
113 #define GPIO_6 0x00000040
114 #define GPIO_7 0x00000080
115 #define GPIO_8 0x00000100
116 #define GPIO_9 0x00000200
117 #define GPIO_10 0x00000400
118 #define GPIO_11 0x00000800
119 #define GPIO_12 0x00001000
120 #define GPIO_13 0x00002000
121 #define GPIO_14 0x00004000
122 #define GPIO_15 0x00008000
123 
124 /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */
125 #define CX23885_NORMS (\
126 	V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP |  V4L2_STD_NTSC_443 | \
127 	V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
128 	V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_Nc   | \
129 	V4L2_STD_PAL_60 |  V4L2_STD_SECAM_L   |  V4L2_STD_SECAM_DK)
130 
131 struct cx23885_fmt {
132 	char  *name;
133 	u32   fourcc;          /* v4l2 format id */
134 	int   depth;
135 	int   flags;
136 	u32   cxformat;
137 };
138 
139 struct cx23885_tvnorm {
140 	char		*name;
141 	v4l2_std_id	id;
142 	u32		cxiformat;
143 	u32		cxoformat;
144 };
145 
146 enum cx23885_itype {
147 	CX23885_VMUX_COMPOSITE1 = 1,
148 	CX23885_VMUX_COMPOSITE2,
149 	CX23885_VMUX_COMPOSITE3,
150 	CX23885_VMUX_COMPOSITE4,
151 	CX23885_VMUX_SVIDEO,
152 	CX23885_VMUX_COMPONENT,
153 	CX23885_VMUX_TELEVISION,
154 	CX23885_VMUX_CABLE,
155 	CX23885_VMUX_DVB,
156 	CX23885_VMUX_DEBUG,
157 	CX23885_RADIO,
158 };
159 
160 enum cx23885_src_sel_type {
161 	CX23885_SRC_SEL_EXT_656_VIDEO = 0,
162 	CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO
163 };
164 
165 struct cx23885_riscmem {
166 	unsigned int   size;
167 	__le32         *cpu;
168 	__le32         *jmp;
169 	dma_addr_t     dma;
170 };
171 
172 /* buffer for one video frame */
173 struct cx23885_buffer {
174 	/* common v4l buffer stuff -- must be first */
175 	struct vb2_v4l2_buffer vb;
176 	struct list_head queue;
177 
178 	/* cx23885 specific */
179 	unsigned int           bpl;
180 	struct cx23885_riscmem risc;
181 	struct cx23885_fmt     *fmt;
182 	u32                    count;
183 };
184 
185 struct cx23885_input {
186 	enum cx23885_itype type;
187 	unsigned int    vmux;
188 	unsigned int    amux;
189 	u32             gpio0, gpio1, gpio2, gpio3;
190 };
191 
192 typedef enum {
193 	CX23885_MPEG_UNDEFINED = 0,
194 	CX23885_MPEG_DVB,
195 	CX23885_ANALOG_VIDEO,
196 	CX23885_MPEG_ENCODER,
197 } port_t;
198 
199 struct cx23885_board {
200 	char                    *name;
201 	port_t			porta, portb, portc;
202 	int		num_fds_portb, num_fds_portc;
203 	unsigned int		tuner_type;
204 	unsigned int		radio_type;
205 	unsigned char		tuner_addr;
206 	unsigned char		radio_addr;
207 	unsigned int		tuner_bus;
208 
209 	/* Vendors can and do run the PCIe bridge at different
210 	 * clock rates, driven physically by crystals on the PCBs.
211 	 * The core has to accommodate this. This allows the user
212 	 * to add new boards with new frequencys. The value is
213 	 * expressed in Hz.
214 	 *
215 	 * The core framework will default this value based on
216 	 * current designs, but it can vary.
217 	 */
218 	u32			clk_freq;
219 	struct cx23885_input    input[MAX_CX23885_INPUT];
220 	int			ci_type; /* for NetUP */
221 	/* Force bottom field first during DMA (888 workaround) */
222 	u32                     force_bff;
223 };
224 
225 struct cx23885_subid {
226 	u16     subvendor;
227 	u16     subdevice;
228 	u32     card;
229 };
230 
231 struct cx23885_i2c {
232 	struct cx23885_dev *dev;
233 
234 	int                        nr;
235 
236 	/* i2c i/o */
237 	struct i2c_adapter         i2c_adap;
238 	struct i2c_client          i2c_client;
239 	u32                        i2c_rc;
240 
241 	/* 885 registers used for raw addess */
242 	u32                        i2c_period;
243 	u32                        reg_ctrl;
244 	u32                        reg_stat;
245 	u32                        reg_addr;
246 	u32                        reg_rdata;
247 	u32                        reg_wdata;
248 };
249 
250 struct cx23885_dmaqueue {
251 	struct list_head       active;
252 	u32                    count;
253 };
254 
255 struct cx23885_tsport {
256 	struct cx23885_dev *dev;
257 
258 	int                        nr;
259 	int                        sram_chno;
260 
261 	struct vb2_dvb_frontends   frontends;
262 
263 	/* dma queues */
264 	struct cx23885_dmaqueue    mpegq;
265 	u32                        ts_packet_size;
266 	u32                        ts_packet_count;
267 
268 	int                        width;
269 	int                        height;
270 
271 	spinlock_t                 slock;
272 
273 	/* registers */
274 	u32                        reg_gpcnt;
275 	u32                        reg_gpcnt_ctl;
276 	u32                        reg_dma_ctl;
277 	u32                        reg_lngth;
278 	u32                        reg_hw_sop_ctrl;
279 	u32                        reg_gen_ctrl;
280 	u32                        reg_bd_pkt_status;
281 	u32                        reg_sop_status;
282 	u32                        reg_fifo_ovfl_stat;
283 	u32                        reg_vld_misc;
284 	u32                        reg_ts_clk_en;
285 	u32                        reg_ts_int_msk;
286 	u32                        reg_ts_int_stat;
287 	u32                        reg_src_sel;
288 
289 	/* Default register vals */
290 	int                        pci_irqmask;
291 	u32                        dma_ctl_val;
292 	u32                        ts_int_msk_val;
293 	u32                        gen_ctrl_val;
294 	u32                        ts_clk_en_val;
295 	u32                        src_sel_val;
296 	u32                        vld_misc_val;
297 	u32                        hw_sop_ctrl_val;
298 
299 	/* Allow a single tsport to have multiple frontends */
300 	u32                        num_frontends;
301 	void                (*gate_ctrl)(struct cx23885_tsport *port, int open);
302 	void                       *port_priv;
303 
304 	/* Workaround for a temp dvb_frontend that the tuner can attached to */
305 	struct dvb_frontend analog_fe;
306 
307 	struct i2c_client *i2c_client_demod;
308 	struct i2c_client *i2c_client_tuner;
309 	struct i2c_client *i2c_client_sec;
310 	struct i2c_client *i2c_client_ci;
311 
312 	int (*set_frontend)(struct dvb_frontend *fe);
313 	int (*fe_set_voltage)(struct dvb_frontend *fe,
314 			      enum fe_sec_voltage voltage);
315 };
316 
317 struct cx23885_kernel_ir {
318 	struct cx23885_dev	*cx;
319 	char			*name;
320 	char			*phys;
321 
322 	struct rc_dev		*rc;
323 };
324 
325 struct cx23885_audio_buffer {
326 	unsigned int		bpl;
327 	struct cx23885_riscmem	risc;
328 	void			*vaddr;
329 	struct scatterlist	*sglist;
330 	int                     sglen;
331 	int                     nr_pages;
332 };
333 
334 struct cx23885_audio_dev {
335 	struct cx23885_dev	*dev;
336 
337 	struct pci_dev		*pci;
338 
339 	struct snd_card		*card;
340 
341 	spinlock_t		lock;
342 
343 	atomic_t		count;
344 
345 	unsigned int		dma_size;
346 	unsigned int		period_size;
347 	unsigned int		num_periods;
348 
349 	struct cx23885_audio_buffer   *buf;
350 
351 	struct snd_pcm_substream *substream;
352 };
353 
354 struct cx23885_dev {
355 	atomic_t                   refcount;
356 	struct v4l2_device 	   v4l2_dev;
357 	struct v4l2_ctrl_handler   ctrl_handler;
358 
359 	/* pci stuff */
360 	struct pci_dev             *pci;
361 	unsigned char              pci_rev, pci_lat;
362 	int                        pci_bus, pci_slot;
363 	u32                        __iomem *lmmio;
364 	u8                         __iomem *bmmio;
365 	int                        pci_irqmask;
366 	spinlock_t		   pci_irqmask_lock; /* protects mask reg too */
367 	int                        hwrevision;
368 
369 	/* This valud is board specific and is used to configure the
370 	 * AV core so we see nice clean and stable video and audio. */
371 	u32                        clk_freq;
372 
373 	/* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
374 	struct cx23885_i2c         i2c_bus[3];
375 
376 	int                        nr;
377 	struct mutex               lock;
378 	struct mutex               gpio_lock;
379 
380 	/* board details */
381 	unsigned int               board;
382 	char                       name[32];
383 
384 	struct cx23885_tsport      ts1, ts2;
385 
386 	/* sram configuration */
387 	struct sram_channel        *sram_channels;
388 
389 	enum {
390 		CX23885_BRIDGE_UNDEFINED = 0,
391 		CX23885_BRIDGE_885 = 885,
392 		CX23885_BRIDGE_887 = 887,
393 		CX23885_BRIDGE_888 = 888,
394 	} bridge;
395 
396 	/* Analog video */
397 	unsigned int               input;
398 	unsigned int               audinput; /* Selectable audio input */
399 	u32                        tvaudio;
400 	v4l2_std_id                tvnorm;
401 	unsigned int               tuner_type;
402 	unsigned char              tuner_addr;
403 	unsigned int               tuner_bus;
404 	unsigned int               radio_type;
405 	unsigned char              radio_addr;
406 	struct v4l2_subdev 	   *sd_cx25840;
407 	struct work_struct	   cx25840_work;
408 
409 	/* Infrared */
410 	struct v4l2_subdev         *sd_ir;
411 	struct work_struct	   ir_rx_work;
412 	unsigned long		   ir_rx_notifications;
413 	struct work_struct	   ir_tx_work;
414 	unsigned long		   ir_tx_notifications;
415 
416 	struct cx23885_kernel_ir   *kernel_ir;
417 	atomic_t		   ir_input_stopping;
418 
419 	/* V4l */
420 	u32                        freq;
421 	struct video_device        *video_dev;
422 	struct video_device        *vbi_dev;
423 
424 	/* video capture */
425 	struct cx23885_fmt         *fmt;
426 	unsigned int               width, height;
427 	unsigned		   field;
428 
429 	struct cx23885_dmaqueue    vidq;
430 	struct vb2_queue           vb2_vidq;
431 	struct cx23885_dmaqueue    vbiq;
432 	struct vb2_queue           vb2_vbiq;
433 	void			   *alloc_ctx;
434 
435 	spinlock_t                 slock;
436 
437 	/* MPEG Encoder ONLY settings */
438 	u32                        cx23417_mailbox;
439 	struct cx2341x_handler     cxhdl;
440 	struct video_device        *v4l_device;
441 	struct vb2_queue           vb2_mpegq;
442 	struct cx23885_tvnorm      encodernorm;
443 
444 	/* Analog raw audio */
445 	struct cx23885_audio_dev   *audio_dev;
446 
447 };
448 
449 static inline struct cx23885_dev *to_cx23885(struct v4l2_device *v4l2_dev)
450 {
451 	return container_of(v4l2_dev, struct cx23885_dev, v4l2_dev);
452 }
453 
454 #define call_all(dev, o, f, args...) \
455 	v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
456 
457 #define CX23885_HW_888_IR  (1 << 0)
458 #define CX23885_HW_AV_CORE (1 << 1)
459 
460 #define call_hw(dev, grpid, o, f, args...) \
461 	v4l2_device_call_all(&dev->v4l2_dev, grpid, o, f, ##args)
462 
463 extern struct v4l2_subdev *cx23885_find_hw(struct cx23885_dev *dev, u32 hw);
464 
465 #define SRAM_CH01  0 /* Video A */
466 #define SRAM_CH02  1 /* VBI A */
467 #define SRAM_CH03  2 /* Video B */
468 #define SRAM_CH04  3 /* Transport via B */
469 #define SRAM_CH05  4 /* VBI B */
470 #define SRAM_CH06  5 /* Video C */
471 #define SRAM_CH07  6 /* Transport via C */
472 #define SRAM_CH08  7 /* Audio Internal A */
473 #define SRAM_CH09  8 /* Audio Internal B */
474 #define SRAM_CH10  9 /* Audio External */
475 #define SRAM_CH11 10 /* COMB_3D_N */
476 #define SRAM_CH12 11 /* Comb 3D N1 */
477 #define SRAM_CH13 12 /* Comb 3D N2 */
478 #define SRAM_CH14 13 /* MOE Vid */
479 #define SRAM_CH15 14 /* MOE RSLT */
480 
481 struct sram_channel {
482 	char *name;
483 	u32  cmds_start;
484 	u32  ctrl_start;
485 	u32  cdt;
486 	u32  fifo_start;
487 	u32  fifo_size;
488 	u32  ptr1_reg;
489 	u32  ptr2_reg;
490 	u32  cnt1_reg;
491 	u32  cnt2_reg;
492 	u32  jumponly;
493 };
494 
495 /* ----------------------------------------------------------- */
496 
497 #define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
498 #define cx_write(reg, value)     writel((value), dev->lmmio + ((reg)>>2))
499 
500 #define cx_andor(reg, mask, value) \
501   writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
502   ((value) & (mask)), dev->lmmio+((reg)>>2))
503 
504 #define cx_set(reg, bit)          cx_andor((reg), (bit), (bit))
505 #define cx_clear(reg, bit)        cx_andor((reg), (bit), 0)
506 
507 /* ----------------------------------------------------------- */
508 /* cx23885-core.c                                              */
509 
510 extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
511 	struct sram_channel *ch,
512 	unsigned int bpl, u32 risc);
513 
514 extern void cx23885_sram_channel_dump(struct cx23885_dev *dev,
515 	struct sram_channel *ch);
516 
517 extern int cx23885_risc_buffer(struct pci_dev *pci, struct cx23885_riscmem *risc,
518 	struct scatterlist *sglist,
519 	unsigned int top_offset, unsigned int bottom_offset,
520 	unsigned int bpl, unsigned int padding, unsigned int lines);
521 
522 extern int cx23885_risc_vbibuffer(struct pci_dev *pci,
523 	struct cx23885_riscmem *risc, struct scatterlist *sglist,
524 	unsigned int top_offset, unsigned int bottom_offset,
525 	unsigned int bpl, unsigned int padding, unsigned int lines);
526 
527 int cx23885_start_dma(struct cx23885_tsport *port,
528 			     struct cx23885_dmaqueue *q,
529 			     struct cx23885_buffer   *buf);
530 void cx23885_cancel_buffers(struct cx23885_tsport *port);
531 
532 
533 extern void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask);
534 extern void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask);
535 extern u32 cx23885_gpio_get(struct cx23885_dev *dev, u32 mask);
536 extern void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask,
537 	int asoutput);
538 
539 extern void cx23885_irq_add_enable(struct cx23885_dev *dev, u32 mask);
540 extern void cx23885_irq_enable(struct cx23885_dev *dev, u32 mask);
541 extern void cx23885_irq_disable(struct cx23885_dev *dev, u32 mask);
542 extern void cx23885_irq_remove(struct cx23885_dev *dev, u32 mask);
543 
544 /* ----------------------------------------------------------- */
545 /* cx23885-cards.c                                             */
546 extern struct cx23885_board cx23885_boards[];
547 extern const unsigned int cx23885_bcount;
548 
549 extern struct cx23885_subid cx23885_subids[];
550 extern const unsigned int cx23885_idcount;
551 
552 extern int cx23885_tuner_callback(void *priv, int component,
553 	int command, int arg);
554 extern void cx23885_card_list(struct cx23885_dev *dev);
555 extern int  cx23885_ir_init(struct cx23885_dev *dev);
556 extern void cx23885_ir_pci_int_enable(struct cx23885_dev *dev);
557 extern void cx23885_ir_fini(struct cx23885_dev *dev);
558 extern void cx23885_gpio_setup(struct cx23885_dev *dev);
559 extern void cx23885_card_setup(struct cx23885_dev *dev);
560 extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev);
561 
562 extern int cx23885_dvb_register(struct cx23885_tsport *port);
563 extern int cx23885_dvb_unregister(struct cx23885_tsport *port);
564 
565 extern int cx23885_buf_prepare(struct cx23885_buffer *buf,
566 			       struct cx23885_tsport *port);
567 extern void cx23885_buf_queue(struct cx23885_tsport *port,
568 			      struct cx23885_buffer *buf);
569 extern void cx23885_free_buffer(struct cx23885_dev *dev,
570 				struct cx23885_buffer *buf);
571 
572 /* ----------------------------------------------------------- */
573 /* cx23885-video.c                                             */
574 /* Video */
575 extern int cx23885_video_register(struct cx23885_dev *dev);
576 extern void cx23885_video_unregister(struct cx23885_dev *dev);
577 extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
578 extern void cx23885_video_wakeup(struct cx23885_dev *dev,
579 	struct cx23885_dmaqueue *q, u32 count);
580 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i);
581 int cx23885_set_input(struct file *file, void *priv, unsigned int i);
582 int cx23885_get_input(struct file *file, void *priv, unsigned int *i);
583 int cx23885_set_frequency(struct file *file, void *priv, const struct v4l2_frequency *f);
584 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm);
585 
586 /* ----------------------------------------------------------- */
587 /* cx23885-vbi.c                                               */
588 extern int cx23885_vbi_fmt(struct file *file, void *priv,
589 	struct v4l2_format *f);
590 extern void cx23885_vbi_timeout(unsigned long data);
591 extern struct vb2_ops cx23885_vbi_qops;
592 extern int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status);
593 
594 /* cx23885-i2c.c                                                */
595 extern int cx23885_i2c_register(struct cx23885_i2c *bus);
596 extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
597 extern void cx23885_av_clk(struct cx23885_dev *dev, int enable);
598 
599 /* ----------------------------------------------------------- */
600 /* cx23885-417.c                                               */
601 extern int cx23885_417_register(struct cx23885_dev *dev);
602 extern void cx23885_417_unregister(struct cx23885_dev *dev);
603 extern int cx23885_irq_417(struct cx23885_dev *dev, u32 status);
604 extern void cx23885_417_check_encoder(struct cx23885_dev *dev);
605 extern void cx23885_mc417_init(struct cx23885_dev *dev);
606 extern int mc417_memory_read(struct cx23885_dev *dev, u32 address, u32 *value);
607 extern int mc417_memory_write(struct cx23885_dev *dev, u32 address, u32 value);
608 extern int mc417_register_read(struct cx23885_dev *dev,
609 				u16 address, u32 *value);
610 extern int mc417_register_write(struct cx23885_dev *dev,
611 				u16 address, u32 value);
612 extern void mc417_gpio_set(struct cx23885_dev *dev, u32 mask);
613 extern void mc417_gpio_clear(struct cx23885_dev *dev, u32 mask);
614 extern void mc417_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput);
615 
616 /* ----------------------------------------------------------- */
617 /* cx23885-alsa.c                                             */
618 extern struct cx23885_audio_dev *cx23885_audio_register(
619 					struct cx23885_dev *dev);
620 extern void cx23885_audio_unregister(struct cx23885_dev *dev);
621 extern int cx23885_audio_irq(struct cx23885_dev *dev, u32 status, u32 mask);
622 extern int cx23885_risc_databuffer(struct pci_dev *pci,
623 				   struct cx23885_riscmem *risc,
624 				   struct scatterlist *sglist,
625 				   unsigned int bpl,
626 				   unsigned int lines,
627 				   unsigned int lpi);
628 
629 /* ----------------------------------------------------------- */
630 /* tv norms                                                    */
631 
632 static inline unsigned int norm_maxh(v4l2_std_id norm)
633 {
634 	return (norm & V4L2_STD_525_60) ? 480 : 576;
635 }
636